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1 July, 1998
PRINTING AND PRESSURE CYLINDER
2-73
Detailed
Descriptions
2.7.5 PAPER FEED CONTROL MECHANISM
Paper Feed Start Timing Detection
There are two actuators on the rear flange of the pressure cylinder. The two
actuators activate the paper feed start sensor [A], to determine the start timing of
the paper feed motor and the registration motor. (For details, refer to the Paper
Feed section – Paper Feed Mechanism, and Paper Registration Mechanism.)
Detection and Feedback of Pressure Cylinder Rotation Fluctuation
Since the pressure cylinder does not have a perfectly circular cross-section, the
rotation speed tends to fluctuate.
The feed encoder [B], which is a photointerrupter, is activated by the encoder plate
[C] at the rear of the pressure cylinder, generating a pulse signal. The CPU
monitors this signal to detect fluctuations in the pressure cylinder rotation.
Depending on the detected fluctuation, the registration motor start timing is
adjusted so that the leading edge of the paper is precisely caught by the paper
clamper [D] on the pressure cylinder.
C229D022.WMF
C229D068.WMF
[A]
[B]
[C]
[D]
Rear
Front
Содержание Gestetner 5450
Страница 1: ...SERVICE MANUAL Machine code C229...
Страница 11: ...MACHINE INTERIOR 1 July 1998 1 6 1 3 MACHINE INTERIOR C229V501 WMF...
Страница 193: ...EXTERIOR 1 July 1998 6 2 6 1 2 REAR AND LEFT COVERS A Rear cover B Left cover C229R512 WMF A B...
Страница 195: ...EXTERIOR 1 July 1998 6 4 6 1 4 INNER COVER AND KNOB COVER A Inner cover B Knob cover C229R511 WMF A B...
Страница 220: ...1 July 1998 MASTER FEED SECTION 6 29 Replacement Adjustment D Duct entrance solenoid C229R064 WMF D...
Страница 304: ...1 July 1998 7 2 Location Map C229S500 WMF...
Страница 305: ...1 July 1998 7 3 P to P Section A C229S501 WMF...
Страница 306: ...1 July 1998 7 4 Section B C229S502 WMF...
Страница 307: ...1 July 1998 7 5 P to P Section C C229S503 WMF...
Страница 308: ...1 July 1998 7 6 Section D C229S504 WMF...
Страница 309: ...1 July 1998 7 7 P to P Section E C229S505 WMF...
Страница 310: ...1 July 1998 7 8 Section F C229S506 WMF...